The bodies of two Korean and two Southeast Asian sailors who were aboard the trawler Oryong 501 were found in the western Bering Sea on Thursday.
The trawler owned by Sajo Industries and carrying 60 people sank on Monday while fishing for Alaska pollack.
Seven people were rescued and 20 bodies have now been found, including six Koreans, 12 Southeast Asians, and two unidentified bodies. Thirty-three remain missing.